Question

find the area of a triangular field whose sides are 78m,50m and 112m

Answer 1

we have to solve the question using heron's Formula

semi perimeter of Δ= perimeter/2

= 78+50+112/2

240/2

120m

formula=√s(s-a)(s-b)(s-c)

=√120(120-78)(120-50)(120-112)

= √120×42×70×8

= √6×2×10×7×6×7×10×2×2×2

= √6²×7²×10²×2²×2²

=√(6×7×10×4)²

=6×7×10×4

=2240m²